$ git clone -n https://src.fedoraproject.org/rpms/perl-constant-tiny.git /var/lib/mock/f41-build-759420-13440/root/chroot_tmpdir/scmroot/perl-constant-tiny
Cloning into '/var/lib/mock/f41-build-759420-13440/root/chroot_tmpdir/scmroot/perl-constant-tiny'...
$ git fetch origin 08ef7e5517703e9ef9abd54d828134a8472c8010:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-constant-tiny
 * [new ref]         08ef7e5517703e9ef9abd54d828134a8472c8010 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 08ef7e5 Eliminate use of obsolete %patchN syntax (#2283636)